English Safety Data Sheet Database 中文版 MSDS

Isobutyl mercaptan

CAS No. 513-44-0 | PubChem CID 10558
Section 1. Identification
Chemical NameIsobutyl mercaptan CAS No.513-44-0
Synonymsisobutyl mer-captan; 2-methyl-1-propanethiol Chinese Name异丁硫醇
Molecular FormulaC4H10S Molecular Weight90.20
UN No.2347 Data SourcePubChem (NIH/NLM)
GHS Hazard Classification
Signal Word DANGER
Pictograms GHS02 · Flammable GHS07 · Irritant
Hazard Statements H225H315H319H335
Precautionary Statements P210P233P240P241P242P243P261P264P264+P265P271P280P302+P352P303+P361+P353P304+P340P305+P351+P338P319P321P332+P317P337+P317P362+P364P370+P378P403+P233P403+P235P405P501

Section 2. Hazards Identification

H225 (100%): Highly Flammable liquid and vapor [Danger Flammable liquids]

H315 (11.3%): Causes skin irritation [Warning Skin corrosion/irritation]

H319 (11.3%): Causes serious eye irritation [Warning Serious eye damage/eye irritation]

H335 (11.2%): May cause respiratory irritation [Warning Specific target organ toxicity, single exposure; Respiratory tract irritation]

P210, P233, P240, P241, P242, P243, P261, P264, P264+P265, P271, P280, P302+P352, P303+P361+P353, P304+P340, P305+P351+P338, P319, P321, P332+P317, P337+P317, P362+P364, P370+P378, P403+P233, P403+P235, P405, and P501 (click each P-code to see the statement)

Aggregated GHS information provided per 1468 reports by companies from 11 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.

Information may vary between notifications depending on impurities, additives, and other factors. The percentage value in parenthesis indicates the notified classification ratio from companies that provide hazard codes. Only hazard codes with percentage values above 10% are shown. For more detailed information, please visit ECHA C&L website.

Section 9. Physical and Chemical Properties

colourless liquid with cooked vegetable, mustard-like odour

88.50 °C. @ 760.00 mm Hg

87-89 °C

soluble in oil and alcohol

(in ethanol)

0.829-0.836

1.437-1.444

Boiling point

Dielectric constant

Fusion temperature

Heat of sublimation

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Optical coefficient

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EU Flavoring substances

FLAVORING AGENT OR ADJUVANT -> FDA Substance added to food

Source: PubChem CID 10558 (NIH/NLM, public domain). Retrieved from PubChem, a public-domain chemistry database maintained by the U.S. National Library of Medicine. Last updated: 2026-08-02 09:30:44.
Disclaimer: This information is compiled for reference only and does not replace the manufacturer's official Safety Data Sheet. Always consult the supplier's SDS before handling any chemical.